/Engine/Source/Editor/PropertyEditor/Public/DetailsViewObjectFilter.h
An object root is a collection of UObjects that represent a top level set of properties in a details panel When there are multiple objects in the root, the common base class for all those objects are found and the properties on that common base class are displayed When a user edits one of those properties, it will propagate the result to all objects in the root. If multiple differing values are found on a single property, the details panel UI displays "multiple values"
struct FDetailsViewObjectRoot
TArray<UObject...
Objects